5360% is the change from 15 to 819
Calculation steps:
[( 819 - 15 ) ÷ 15] x 100 = 5360%
Formula
Percentage change = [(819 - 15) / 15] x 100
Subtract the new number by the original number
819 - 15 = 804
804 ÷ 15 = 53.6
53.6 x 100 = 5360%
Example